Submission #1043246

# Submission time Handle Problem Language Result Execution time Memory
1043246 2024-08-04T05:52:45 Z Alihan_8 The Big Prize (IOI17_prize) C++17
94.76 / 100
32 ms 5904 KB
#include "prize.h"
 
#include <bits/stdc++.h>
 
using namespace std;
 
#define all(x) x.begin(), x.end()
#define ar array
#define pb push_back
#define ln '\n'
//#define int long long
 
using i64 = long long;
 
template <class F, class _S>
bool chmin(F &u, const _S &v){
    bool flag = false;
    if ( u > v ){
        u = v; flag |= true;
    }
    return flag;
}
 
template <class F, class _S>
bool chmax(F &u, const _S &v){
    bool flag = false;
    if ( u < v ){
        u = v; flag |= true;
    }
    return flag;
}
 
const int B = 472;
 
int find_best(int n){
	vector <vector<int>> dp(n);	
	
	auto f = [&](int j){
		if ( dp[j].empty() ){
			dp[j] = ask(j);
		}
		
		return dp[j];
	};
	
	auto g = [&](int j){
		return f(j)[0] + f(j)[1];
	};
	
	int mx = -1, k = -1;
	
	for ( int i = 0; i < min(n, B); i++ ){
		if ( chmax(mx, g(i)) ){
			k = i;
		}
		
		if ( g(i) == 0 ){
			return i;
		}
	}
	
	for ( int i = k; i < n;){
		int l = i, r = min(n, l + B);
		
		if ( f(l) == f(r - 1) ){
			i = r - 1; continue;
		}
		
		while ( l + 1 < r ){
			int m = (l + r) / 2;
			
			if ( f(m)[1] != f(i)[1] ){
				r = m;
			} else l = m;
		}
		
		int j = r;
		
		while ( j < n && g(j) != g(i) ){
			if ( g(j) == 0 ){
				return j;
			} j++;
		}
		
		i = j;
	}
	
	return 0;
}
# Verdict Execution time Memory Grader output
1 Correct 4 ms 4952 KB Output is correct
2 Correct 4 ms 4952 KB Output is correct
3 Correct 4 ms 4952 KB Output is correct
4 Correct 4 ms 4952 KB Output is correct
5 Correct 4 ms 4952 KB Output is correct
6 Correct 1 ms 4952 KB Output is correct
7 Correct 5 ms 5208 KB Output is correct
8 Correct 5 ms 5156 KB Output is correct
9 Correct 4 ms 5148 KB Output is correct
10 Correct 5 ms 4952 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 3 ms 4952 KB Output is correct
2 Correct 5 ms 5296 KB Output is correct
3 Correct 5 ms 5208 KB Output is correct
4 Correct 6 ms 4952 KB Output is correct
5 Correct 3 ms 4952 KB Output is correct
6 Correct 1 ms 4952 KB Output is correct
7 Correct 5 ms 5036 KB Output is correct
8 Correct 4 ms 4952 KB Output is correct
9 Correct 4 ms 4952 KB Output is correct
10 Correct 5 ms 4952 KB Output is correct
11 Correct 4 ms 4952 KB Output is correct
12 Correct 3 ms 4952 KB Output is correct
13 Correct 6 ms 4952 KB Output is correct
14 Correct 3 ms 856 KB Output is correct
15 Correct 7 ms 5168 KB Output is correct
16 Correct 18 ms 5464 KB Output is correct
17 Correct 5 ms 4952 KB Output is correct
18 Partially correct 29 ms 5288 KB Partially correct - number of queries: 5226
19 Correct 4 ms 4952 KB Output is correct
20 Correct 7 ms 2768 KB Output is correct
21 Correct 10 ms 5208 KB Output is correct
22 Correct 5 ms 4952 KB Output is correct
23 Correct 4 ms 4952 KB Output is correct
24 Correct 3 ms 4952 KB Output is correct
25 Correct 10 ms 5200 KB Output is correct
26 Correct 11 ms 5452 KB Output is correct
27 Correct 3 ms 4952 KB Output is correct
28 Partially correct 28 ms 5444 KB Partially correct - number of queries: 5280
29 Correct 14 ms 5244 KB Output is correct
30 Partially correct 19 ms 5208 KB Partially correct - number of queries: 5509
31 Correct 3 ms 4952 KB Output is correct
32 Correct 5 ms 4952 KB Output is correct
33 Correct 0 ms 420 KB Output is correct
34 Correct 6 ms 5208 KB Output is correct
35 Correct 3 ms 4952 KB Output is correct
36 Correct 5 ms 4952 KB Output is correct
37 Correct 4 ms 5148 KB Output is correct
38 Correct 3 ms 4952 KB Output is correct
39 Correct 12 ms 5208 KB Output is correct
40 Partially correct 16 ms 5184 KB Partially correct - number of queries: 5007
41 Correct 13 ms 5696 KB Output is correct
42 Correct 14 ms 5208 KB Output is correct
43 Correct 14 ms 5196 KB Output is correct
44 Correct 7 ms 5208 KB Output is correct
45 Correct 9 ms 4952 KB Output is correct
46 Correct 3 ms 4952 KB Output is correct
47 Correct 8 ms 5200 KB Output is correct
48 Correct 16 ms 5208 KB Output is correct
49 Correct 4 ms 4952 KB Output is correct
50 Partially correct 22 ms 5708 KB Partially correct - number of queries: 5233
51 Correct 7 ms 5208 KB Output is correct
52 Correct 3 ms 4952 KB Output is correct
53 Correct 4 ms 4952 KB Output is correct
54 Correct 13 ms 5208 KB Output is correct
55 Correct 3 ms 5148 KB Output is correct
56 Partially correct 32 ms 5208 KB Partially correct - number of queries: 5227
57 Correct 10 ms 5208 KB Output is correct
58 Correct 18 ms 5304 KB Output is correct
59 Correct 11 ms 5208 KB Output is correct
60 Correct 12 ms 5208 KB Output is correct
61 Correct 6 ms 4952 KB Output is correct
62 Correct 3 ms 4952 KB Output is correct
63 Correct 5 ms 4952 KB Output is correct
64 Correct 5 ms 4952 KB Output is correct
65 Correct 6 ms 4952 KB Output is correct
66 Correct 7 ms 5144 KB Output is correct
67 Correct 5 ms 4952 KB Output is correct
68 Correct 2 ms 4952 KB Output is correct
69 Correct 7 ms 5208 KB Output is correct
70 Correct 6 ms 4952 KB Output is correct
71 Partially correct 21 ms 5208 KB Partially correct - number of queries: 5284
72 Correct 6 ms 4952 KB Output is correct
73 Partially correct 22 ms 5456 KB Partially correct - number of queries: 5221
74 Partially correct 27 ms 5456 KB Partially correct - number of queries: 5248
75 Correct 5 ms 5172 KB Output is correct
76 Correct 18 ms 5208 KB Output is correct
77 Partially correct 29 ms 5512 KB Partially correct - number of queries: 5517
78 Correct 5 ms 5208 KB Output is correct
79 Correct 9 ms 5208 KB Output is correct
80 Partially correct 17 ms 5208 KB Partially correct - number of queries: 5520
81 Partially correct 19 ms 5220 KB Partially correct - number of queries: 5524
82 Partially correct 28 ms 5208 KB Partially correct - number of queries: 5473
83 Correct 4 ms 5144 KB Output is correct
84 Correct 20 ms 5172 KB Output is correct
85 Partially correct 20 ms 5204 KB Partially correct - number of queries: 5490
86 Correct 7 ms 5904 KB Output is correct
87 Correct 6 ms 4952 KB Output is correct
88 Correct 5 ms 4952 KB Output is correct
89 Correct 6 ms 4952 KB Output is correct
90 Correct 5 ms 4952 KB Output is correct
91 Correct 6 ms 4952 KB Output is correct
92 Correct 6 ms 5716 KB Output is correct
93 Correct 7 ms 5208 KB Output is correct
94 Correct 4 ms 4952 KB Output is correct
95 Correct 11 ms 5208 KB Output is correct
96 Correct 5 ms 4952 KB Output is correct
97 Correct 5 ms 5148 KB Output is correct